The crux of this Scripture from John can be found in Romans 12:9, “Love must be sincere.” With the Greek word for “sincere” referencing back to Classical Greek drama, where the actor wore a mask and wasn’t genuine. So here, John is urging his readers to not just think about it, or make promises that they will never keep, or make grandiose speeches with no integrity…but to put their love in action with authenticity…modeling the love of Jesus for all to see.